[PATCH 2/2] Cygwin: Drop use of loadlib.h in regtool

[Jon Turney <jon.turney@dronecode.org.uk>]

Link directly with RegDeleteKeyExW(), available since Vista.

(It's unclear the LoadLibrary wrapper was ever doing anything useful
here, as (i) DLL lookup in PATH was avoided as advapi32 is already
loaded into the process, and (ii) advapi32 is a 'known DLL' which is
only ever loaded from system directory)
---
 winsup/utils/regtool.cc | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/winsup/utils/regtool.cc b/winsup/utils/regtool.cc
index fd2dd0590..e919185ae 100644
--- a/winsup/utils/regtool.cc
+++ b/winsup/utils/regtool.cc
@@ -16,7 +16,6 @@ details. */
 #include <windows.h>
 #include <sys/cygwin.h>
 #include <cygwin/version.h>
-#include "loadlib.h"
 
 #define DEFAULT_KEY_SEPARATOR '\\'
 
@@ -589,10 +588,6 @@ cmd_add ()
   return 0;
 }
 
-extern "C" {
-  LONG WINAPI (*regDeleteKeyEx)(HKEY, LPCWSTR, REGSAM, DWORD);
-}
-
 int
 cmd_remove ()
 {
@@ -600,13 +595,7 @@ cmd_remove ()
 
   find_key (2, KEY_ALL_ACCESS);
   if (wow64)
-    {
-      HMODULE mod = LoadLibrary ("advapi32.dll");
-      if (mod)
-	regDeleteKeyEx = (LONG WINAPI (*)(HKEY, LPCWSTR, REGSAM, DWORD)) GetProcAddress (mod, "RegDeleteKeyExW");
-    }
-  if (regDeleteKeyEx)
-    rv = (*regDeleteKeyEx) (key, value, wow64, 0);
+    rv = RegDeleteKeyExW (key, value, wow64, 0);
   else
     rv = RegDeleteKeyW (key, value);
   if (rv != ERROR_SUCCESS)
-- 
2.35.1